Renesas RTKA223011DR0040BU is a high-performance, non-isolated AC-DC converter demonstration board designed for low-cost, high-voltage applications. With a universal input range of 85VAC to 265VAC, the RTKA223011DR0040BU can be used in a wide range of applications, including lighting, industrial automation, and power supplies. The board features the RAA223011 buck converter IC, which provides high efficiency and low standby power consumption.
Renesas RTKA223011DR0040BU is a high-performance, non-isolated AC-DC converter demonstration board designed for low-cost, high-voltage applications. With a universal input range of 85VAC to 265VAC, the RTKA223011DR0040BU can be used in a wide range of applications, including lighting, industrial automation, and power supplies. The board features the RAA223011 buck converter IC, which provides high efficiency and low standby power consumption.
User Manual
X0119323 Rev.1.0 Page 1
Feb 11, 2021 © 2021 Renesas Electronics
The RTKA223011DR0040BU demonstration board is a high voltage buck converter that demonstrates a low-cost
high performance non-isolated AC/DC conversion from a universal input of 85VAC ~ 265VAC to a 24V output with
output current up to 200mA.
The board has built-in overcurrent, short-circuit, input brownout, and over-temperature protections.
RTKA223011DR0040BU comes with a RAA223011 in TSOT23-5 package.
Key Features
▪Universal input
▪Standby power less than 13mW
▪No audible noise
▪Low cost external components
Specifications
This board is optimized for the following operating conditions:
▪Input voltage: 85VAC ~ 265VAC
▪Output voltage: 24VDC
▪Output current: 200mA max (at 230VAC or higher)
▪Efficiency: >74% at 100% load; 82% at 50% load
▪No-load power: 11.3mW at 120VAC; 12.4mW at 230VAC
▪Load regulation: -2.3%, load range 10% to 100%
▪Operating temperature: -45°C ~ 70°C
▪Board dimension: 29mm x 52mm
Ordering Information
Related Literature
For a full list of related documents, visit our website:
▪RAA223011 device page
Part Number Description
RTKA223011DR0040BU RAA223011 TSOT23-5 demonstration board
RTKA223011DR0040BU
Demonstration Board
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RTKA223011DR0040BU User Manual
1. Circuit Description
The RTKA223011DR0040BU is a buck regulator implemented with a high-side float-switching topology, with
switching frequency up to 30kHz. Its input has D1, D5, D6, and D7 operating as a full-bridge rectifier. FR is a 1W
fusible resistor providing input overcurrent protection and inrush current limiting.
C1, L1, and C2 consists of the input filter that provides the energy buffer after rectification and reduces conducted
EMI noises to the input. L2, D2, and COUT are the buck converter components. RFB1, RFB2, CFB2, and CFB1
provide the output feedback signal to the IC. D4 and R2 provide VCC biasing current after startup, to increase the
efficiency. They can be optional for low-cost, low-power applications. CVCC is the IC supply capacitor.
1.1 Recommended Equipment
▪AC power supply capable of generating AC voltage from 85VAC to 265VAC at 60Hz/50Hz, with at least 100mA
output current capability.
▪Load resistor box with adjustable value of 120Ω and up, or an electronics load that can emulate a resistor load
or current load up to 200mA.
▪Multi-meters to measure the output voltage and current.
▪Power meter to measure the AC input power.
1.2 Quick Start Guide
1. Program the AC power supply with a voltage between 85VAC and 265VAC at the corresponding frequency of
60Hz or 50Hz.
2. While the AC power supply is off, connect the output cables of the AC power supply to the L and N terminal of
the RTKA223011DR0040BU. An optional power meter can be added in between AC power supply output and
the input of the board.
3. Connect the load to the output terminals VOUT and GND.
4. Connect a voltage meter to VOUT and GND and connect a current meter between board outputs and the load.
5. Turn on AC power supply.
Figure 1. RTKA223011DR0040BU Connection Diagram
V
OUT
+
V
IN
85V
AC
~ 265V
AC
R
LOAD
Power
Meter
V
A
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RTKA223011DR0040BU User Manual
2. Board Design
2.1 PCB Layout Guidelines
For detailed PCB guidelines, see the RAA223011 datasheet.
2.2 RTKA223011DR0040BU Evaluation Board
Figure 2. RTKA223011DR0040BU Evaluation Board (Top)
Figure 3. RTKA223011DR0040BU Evaluation Board (Bottom)
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RTKA223011DR0040BU User Manual
2.3 RTKA223011DR0040BU Circuit Schematic
Figure 4. RTKA223011DR0040BU Schematic
GND
85VAC~265VAC
N
L
VOUT
DNP
DNP
raa223011
1000UH
L1
330UF
COUT
J1
120K
R2
4.7UF
C2
0.1UF
C3
J2
887K
RFB1
SOURCE
GND
FB
VCC
N/C
N/C
DRAIN
N/C
U1
1
2
3
45
6
7
8
137K
R1
FR
10
CFB1
0.1UF
SOURCE
DRAIN
GND
FB
VCC
U2
1
2
3
4
5
J4
D7
1N4007
C4
0.47UF
D2
MURS160T3
J3
D6
1N4007
JP1
CVCC
D5
1N4007
D4
ES1J
1UF
CVCC_A
1N4007
D1 D3
1N4007
CFB2
820PF
4.7UF
C1
L2
1500UH
102K
RFB2
UNNAMED _2_ AX IALDIODE _I14_ANUNNAMED _2_AXIALDIODE_I14_CATUNNAMED _2_AXIALDIODE_I32_AN
UNNAMED _2_AXIALDIODE_I59_AN
UNNAMED _2_AXIALDIODE_I61_AN
UNNAMED _2_AXIALRES_I25_1 UNNAMED _2_INDRADIAL_I27_1 UNNAMED_2_INDRADIAL_I27_2
UNNAMED _2_JUMPER2_I47_IN1UNNAMED _2_JUMPER2_I47_IN2
UNNAMED _2_MURS160T3_I15_C AT
UNNAMED _2_RAA223011_I64_FB
UNNAMED _2_RAA223011_I64_VCC
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RTKA223011DR0040BU User Manual
2.4 Bill of Materials
Qty Ref Des Description Manufacturer Part Number
5D1, D3,
D5-D7
Generic Diode, 1kV, 1A, DO41 Various 1N4007
1COUT CAP ALUM 330µF 20% 35V RADIAL Rubycon 35ZLH330MEFCT810X12.5
1FR Miniature Metal Film Resistor, 10Ω, 1W, Wirewound Yageo FKN1WSJR-52-10R
2C1, C2 CAP ALUM 4.7µF 20% 400V RADIAL Kemet ESG475M400AH2AA
0CVCC Do Not Populate
1CVCCA Multilayer Cap, 1µF, 50V, 10%, 0603 Murata Generic
1CFB2 Multilayer Cap, 820PF, 50V, 10%, 0603 Generic Various
2C3, CFB1 Multilayer Cap, 0.1µF, 50V, 10%, 0603 Generic Various
1C4 Multilayer Cap, 0.47µF, 50V, 10%, 0603 Generic Various
1RFB2 Thick Film Chip Resistor, 102k, 1/16W, 1%, 0603 Generic Various
1R1 Thick Film Chip Resistor, 137k, 1/16W, 1%, 0603 Generic Various
1RFB1 Thick Film Chip Resistor, 887k, 1/10W, 1%, 0603 Generic Various
1D4 1A 600V Fast Rectifier Diode, DO214 Fairchild ES1J
1D2 Ultrafast Power Rectifier, 600V, 2A, SMB On
Semicondutor
MURS160T3
1U2 700V, Off-line Regulator, TSOT23-5 Renesas RAA2230114GNP#JA0
0U1 Do Not Populate
1R2 Thick Film Chip Resistor, 120k, 1/16W, 1%, 0603 Generic Various
1L1 RLB Series Radial Lead Inductor, 1mH, 10%,
100MA, Type2
Bourns RLB0608-102KL
1L2 Power Inductor, 1.5mH, 10%, 0.45A, SMD Bourns SDR1006-152KL
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RTKA223011DR0040BU User Manual
3. Typical Performance Curves
Vin = 85VAC ~ 265VAC, VOUT = 24V, IOUT = 200mA (maximum), TA = +25°C
Figure 7. Efficiency Overload Current Figure 8. Load Regulation
Table 1. Typical No-Load Power Consumption
Power Supply Standby Power Energy Star
120VAC/60Hz 11.3mW 300mW
230VAC/50Hz 12.4mW 300mW
60
65
70
75
80
85
050100150
200
Efficiency (%)
Load Current (mA)
120Vac
230Vac
22.5
23.0
23.5
24.0
24.5
25.0
050100150
200
V
OUT
(V)
Load Current (mA)
120Vac
230Vac
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RTKA223011DR0040BU User Manual
4. Revision History
Revision Date Description
1.0 Feb 11, 2021 Initial release
Corporate Headquarters
TOYOSU FORESIA, 3-2-24 Toyosu,
Koto-ku, Tokyo 135-0061, Japan
www.renesas.com
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Electronics Corporation. All trademarks and registered
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(Rev.1.0 Mar 2020)
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Renesas RTKA223011DR0040BU is a high-performance, non-isolated AC-DC converter demonstration board designed for low-cost, high-voltage applications. With a universal input range of 85VAC to 265VAC, the RTKA223011DR0040BU can be used in a wide range of applications, including lighting, industrial automation, and power supplies. The board features the RAA223011 buck converter IC, which provides high efficiency and low standby power consumption.
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